Home / 870,746.40-1,306,119.60-760,154.40

Finding the Fourth Proportional to 870,746.40, 1,306,119.60 and 760,154.40

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Solution

The fourth proportional to 870,746.40, 1,306,119.60 and 760,154.40 is: 1,140,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,746.40 : 1,306,119.60 = 760,154.40 : x
  2. Step 2: Convert to fraction form
    870,746.40/1,306,119.60 = 760,154.40/x
  3. Step 3: Cross multiply
    870,746.40x = 1,306,119.60 × 760,154.40
  4. Step 4: Simplify right side
    870,746.40x = 992,852,560,866.24
  5. Step 5: Solve for x
    x = 992,852,560,866.24/870,746.40
  6. Step 6: Final answer
    x = 1,140,231.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.